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Response to challenge infection in sheep selected for resistance and susceptibility to Haemonchus contortus

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Title Response to challenge infection in sheep selected for resistance and susceptibility to Haemonchus contortus
 
Creator C.P. Swarnkar and D. Singh
 
Subject Faecal egg count, Haemonchus contortus, Pepsinogen, Resistance, Sheep
 
Description Not Available
A study was undertaken to compare the host response on single and trickle infections of H. contortus in Malpura lambs selected for either resistance or susceptibility to H. contortus. Twelve Malpura male lambs (6 each from resistant - R and susceptible - S lines; 9-12 months old) were used during two periods of 10 weeks: single and trickle infections with an interval of three weeks. The host response was measured in terms of body weight, faecal egg count, haematological and biochemical characters for 10 weeks post challenge. Over the period of 10 weeks, a gain of 0.3 kg was recorded in lambs of R-line compared to a loss of 4.1 kg in S-line on single challenge. However, on trickle infection both the groups exhibited gain (5.7 kg in R-line and 5.2 kg in S-line) in body weight. On majority of occasions intensity of infection was lower in R-line compared to S line. Non-significant variation was observed in haemoglobin (Hb) and packed cell volume (PCV) among both the lines on single challenge. However, significant (P
ICAR-CSWRI Avikanagar
 
Date 2021-07-30T05:53:47Z
2021-07-30T05:53:47Z
2017-04-01
 
Type Research Paper
 
Identifier Swarnkar CP and Singh D. 2017. Response to challenge infection in sheep selected for resistance and susceptibility to Haemonchus contortus. Indian Journal of Small Ruminants 23: 43-51
http://krishi.icar.gov.in/jspui/handle/123456789/51419
 
Language English
 
Publisher Indian Society for Sheep and Goat Production and Utilization